Viessmann VITODENS 200 Start-Up And Service Instructions page 26

Initial Start-up and Service
Steps
(continued)
I
nitial start-up
21 23
22 24
X5
1 2 3 4
26
28. Check Dekamatik-HK
1. Check via Scan 2 on the
programming unit whether the
connected expansion module is
recognized.
Calling up Scan 2
Open the cover:
Menu option
→ SYSTEM
→ OPERATING
STATUS
→ CONTINUE
2. If the expansion module or the
Dekamatik is not recognized, check
that they were installed correctly.
Check setting of rotary switch
H Dekamatik-HK1:
The rotary switch on the
communication module must be set
to "4".
H Dekamatik-HK2:
The rotary switch on the circuit board
E4 must be set to "4".
H Dekamatik-HK 4:
The rotary switch on circuit
board E4.1 must be set to "4" and
the rotary switch on circuit
board E4.2 to "5".
Expansion module
The last-placed digit has the following
meaning:
2____0 =Viessmann 2-wire BUS
2____1 =Viessmann 2-wire BUS
Button
"D"
"B" Dekamatik-HK
"A" The second-placed digit from the left
until has the following meaning:
"Scan 2" _2____ =Extension kit for a heating
is
displayed
_3____ =Dekamatik-HK4 recognized
Please note:
A green LED will flash on the
expansion module if the data BUS is
intact. If the LED is not lit, the data
line "X5.3"-"X5.4" may be
incorrectly connected.
See wiring diagram in section entitled
"Additional Information".
Please note:
Accessory
expansion module not
recognized
expansion module is
recognized
circuit with mixing valve or
Dekamatik-HK1/-HK2
recognized
Please reference
corresponding installation
documentation for
Dekamatik-HK.